@misc{indiciae06ed3c4f2b73,
  title = {Non-random pairing in American kestrels: mate choice versus intra-sexual competition},
  author = {Gary R. Bortolotti and William M. Iko},
  year = {1992},
  doi = {10.1016/s0003-3472(05)80577-9},
  url = {https://pubs.usgs.gov/publication/70127561},
  note = {Source identifier: 70127561}
}